Definition: In this task, you are given an input list A. You need to convert all the alphabets in the list with a number representing their position in the English alphabet. E.g., replace A by 1, B by 2, a by 1, b by 2, and so on.
Input: ['5411', 'D', '7277', 'h', '8547', 'b']

5411, 4, 7277, 8, 8547, 2